<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title></title>
</head>
<body>
<form action="/phpBase/3/7.php?m=10&n=20" method="post">
    <input name="username" type="text">
    <input name="username2" type="text">
    <input name="username3" type="text">
    <input type="submit">
</form>
</body>
</html>